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TitleIndicator mineral content and geochemistry of glacial sediments from northwest Alberta (NTS 84L, M): new opportunities for mineral exploration
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorPlouffe, AORCID logo; Paulen, R CORCID logo; Smith, I RORCID logo
SourceGeological Survey of Canada, Open File 5121, 2006, 29 pages; 1 CD-ROM, Open Access logo Open Access
LinksCanadian Database of Geochemical Surveys, downloadable files
LinksBanque de données de levés géochimiques du Canada, fichiers téléchargeables
Alt SeriesAlberta Energy and Utilities Board / Alberta Geological Survey, Special Report 77
PublisherNatural Resources Canada
Documentopen file
MediaCD-ROM; digital; on-line
RelatedThis publication is related to Chemistry of kimberlite indicator minerals and sphalerite derived from glacial sediments of northwest Alberta
File formatreadme
File formatpdf (Adobe® Acrobat® Reader®); xls (Microsoft Excel 2000); txt
NTS84L; 84M
AreaZama Lake; Sousa Creek; Chinchaga River; Rainbow Lake; Hay River; Bistcho Lake; Cameron Hills; Zama City; Petitot River
Lat/Long WENS-120.0000 -118.0000 60.0000 58.0000
Subjectssurficial geology/geomorphology; economic geology; geochemistry; mineral exploration; mineral deposits; drift prospecting; zinc; glacial deposits; glacial landforms; geochemical analyses; heavy mineral analyses; sphalerite; galena; glaciation; ice movement directions; ice transport directions; Wisconsinian glacial stage; glaciofluvial deposits; dispersal patterns; size fractionation; tills; silts; clays; sands; soils; source rocks; source areas; hydrothermal deposits; geothermal fluids geochemistry; remobilization; sedimentary rocks; carbonates; lead; shales; kimberlites; diamond; pyrope; chromite; gold; hydrocarbon gases; Fort Nelson Lowland; Alberta Plateau; Pine Point Deposit; Great Slave Lake Shear Zone; Laurentide Ice Sheet; Keewatin Sector; Natural hazards; Cenozoic; Quaternary
Illustrationssketch maps; photographs; flow charts
ProgramTargeted Geoscience Initiative (TGI-2), 2003-2005
ProgramNorthern Resources Development Program
Released2006 03 01
AbstractThis report presents the results of heavy mineral and geochemical analyses conducted on glacial sediment samples collected in northwest Alberta. This study was undertaken as part of a collaborative project between the Alberta Geological Survey (Alberta Energy and Utilities Board) and the Geological Survey of Canada (Natural Resources Canada) originally designed to assess the regional occurrence of kimberlite indicator minerals (KIMs) in glacial deposits. Results indicate that KIMs are absent, or rare, and generally consist of trace contents of pyrope and chromite, the composition of which remains to be assessed with electron microprobe analyses. Gold grains are generally absent from all samples with a some exceptions where they are present in only small amounts. Of particular significance, and the focus of this report, is the presence of anomalous concentrations of sphalerite grains with secondary galena (up to 1000 sphalerite grains in the 0.25-0.5 mm size fraction from a bulk till sample) from the south-central sector of the Bistcho Lake (NTS 84M) and north central sector of the Zama Lake (NTS 84L) map sheets. The source of the sphalerite grains in till is unknown. However, given its geographically restricted presence in the regional sample set, it may point to undiscovered sedimentary hosted zinc deposits in this region, and therefore, represents new opportunities for mineral exploration.

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